#include<bits/stdc++.h>
using namespace std;
int tong[100005];
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    int n;
    scanf("%d",&n);
    int a,ans=-1;
    for(int i=1;i<=n;i++){
        scanf("%d",&a);
        tong[a]++;
        ans=max(ans,tong[a]);
    }
    printf("%d",ans);
    fclose(stdin);
    fclose(stdout);
    return 0;
}
